Wall panel for a modular building structure



FIG. 1 is a perspective view of a wall panel for a modular building structure;

FIG. 2 is a perspective view of FIG. 1, showing the opposite side thereof;

FIG. 3 is a front elevation view of FIG. 1;

FIG. 4 is a side elevation view of FIG. 1;

FIG. 5 is a top plan view of FIG. 1; and,

FIG. 6 is a bottom plan view of FIG. 1. 

The ornamental design for a wall panel for a modular building structure, as shown and described. 